[JURIST] A judge for the US District Court for the District of Alaska [official website] refused Monday to order Exxon Mobil [corporate website] to pay an additional $92 million in damages from the Exxon Valdez oil spill [BBC backgrounder; JURIST news archive]. Under a 1991 settlement agreement, Exxon paid $900 million in civil damages. The US and Alaskan government sought in 2006 to reopen the settlement agreement [JURIST report], saying more money was needed to clean up the crude oil…